PT-2011-3447 · Microsoft · Win32K.Sys+2

Mr. Husheng Zhou + 3 · Published 2011-07-13 · Updated 2018-10-12 · CVE-2011-1886

Positive Technologies (AI Summary)

CVSS v2.0

2.1

Low

Base vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Name of the Vulnerable Software and Affected Versions Microsoft Windows XP SP3

Description An information disclosure issue exists due to improper validation of function parameters in Windows kernel-mode drivers. This allows an attacker to access data from any kernel-mode memory location, including access to the SAM file. A local user can exploit this by running a crafted application that triggers a NULL pointer dereference.

Recommendations For Microsoft Windows XP SP3, consider restricting access to kernel-mode memory locations until a patch is available. As a temporary workaround, avoid using applications that trigger NULL pointer dereferences in the win32k.sys driver until the issue is resolved.

Fix

Related Identifiers

CVE-2011-1886

Affected Products

Windows

Windows Xp

Win32K.Sys

References · 11

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-054 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1886 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2011-1886 · Security Note
• http://osvdb.org/73791 · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-054 · Note
• http://support.avaya.com/css/P8/documents/100144947 · Note
• http://secunia.com/advisories/45186 · Note
• http://us-cert.gov/cas/techalerts/TA11-193A.html · Note
• http://securityfocus.com/bid/48607 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12778 · Note
• http://securitytracker.com/id?1025761 · Note